* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: Arial, "PingFang SC", "Microsoft Yahei", sans-serif;
}

body {
  background-color: #0f141c;
  opacity: 1;
  background-image: radial-gradient(
    #212943 0.6000000000000001px,
    #0f141c 0.6000000000000001px
  );
  background-size: 12px 12px;
  color: white;
}

#app {
  width: 100vw;
  height: 100vh;
  max-width: 100%;
  display: grid;
  place-items: center;
}

#app div {
  width: 500px;
}

button {
  border: 1px solid hsl(280deg, 50%, 50%);
  padding: 4px 6px;
  margin-right: 8px;
  margin-top: 8px;
  background: none;
  color: white;
  font-size: 20px;
}
